Fe (mg/l) | 2.328 ± 0.937 (0.25 - 6.42) | 2.255 ± 0.744 (0.49 - 5.28) | 0.6083 ± 0.116 (0.19 - 0.92) | 0.3 | 0.175 | P > 0.05 |
Mn (mg/l) | 0.150 ± 0.033a (0.064 - 0.296) | 0.210 ± 0.029a (0.125 - 0.310) | 0.053 ± 0.008b (0.024 - 0.075) | 0.40 | 0.002 | P < 0.01 |
Zn (mg/l) | 0.712 ± 0.304 (0.191 - 2.040) | 0.689 ± 0.236 (0.280 - 1.583) | 0.138 ± 0.016 (0.098 - 0.190) | 5 | 0.153 | P > 0.05 |
Cu (mg/l) | 0.057 ± 0.022 (0.007 - 0.148) | 0.066 ± 0.014 (0.023 - 0.121) | 0.020 ± 0.004 (0.009 - 0.037) | 0.5 - 1.5 | 0.112 | P > 0.05 |
Cr (mg/l) | 0.063 ± 0.010b (0.029 - 0.099) | 0.107 ± 0.020a (0.051 - 0.179) | 0.035 ± 0.010b (0.010 - 0.065) | 0.05 | 0.009 | P < 0.01 |
Cd (mg/l) | 0.046 ± 0.009b (0.024 - 0.084) | 0.085 ± 0.011a (0.043 - 0.121) | 0.022 ± 0.004b (0.007 - 0.037) | 0.005 | 0.000 | P < 0.001 |
Ni (mg/l) | 0.010 ± 0.004 (0.000 - 0.000) | 0.030 ± 0.008 (0.000 - 0.000) | 0.020 ± 0.005 (0.000 - 0.000) | NG | 0.067 | P > 0.05 |
Pb (mg/l) | 0.029 ± 0.006b (0.010 - 0.045) | 0.058 ± 0.011a (0.023 - 0.092) | 0.020 ± 0.007b (0.005 - 0.049) | 0.01 | 0.015 | P < 0.05 |
V (mg/l) | 0.01 ± 0.003 (0.000 - 0.000) | 0.03 ± 0.007 (0.000 - 0.000) | 0.01 ± 0.004 (0.000 - 0.000) | NG | 0.061 | P > 0.05 |